Ore-separator



R. H. SANDERS. Ore'Separator.

No. 230,500 Patented luly 27, 188C).v

layi- WITNESSES Y'QINVENT'OR ATTOR N EY UNITED STATES PATENT OFFICE.

RICHARD H. SANDERS, OF PHILADELPHIA, PENNSYLVANIA. v

ORE-SEPARATO R.

SPECIFICATION forming part of Letters Patent N 230,500, dated July 27, 1880. Application filed February 13, 1880.

To all whom it may concern:

Be it known that I, RICHARD H. SANDERS,

V of the city and county of Philadelphia, and

State of Pennsylvania, have invented a new and useful method and machine for separatin g materials in mechanical mixtures, such as ores and coal, from accompanying impurities, or for separating difierent ores, according to the specific gravities of the respective elements of any mixture; and I do hereby declare the following to be a sufficiently full, clear, and exact description thereof to enable others skilled in the art to make and use the said invention, reference being had to the accompanying drawings, and the letters of reference marked thereon, forming a component part of this specification.

My object is a cheap and efficient machine for separating materials according to their specific gravities-that is, to separate ore from its accompanying impurities, or for separating different ores from each other, or for separating coal from slate, when such articles are combined in a mechanical mixture.

is fixed in the center of the lower part of thecylinder F, and extends to the top of F. This shaft 0 is arranged so that it will revolve in the axis of the cylinder A, and to itare at- I tached the paddles D D. The shaft 0 is prolonged above the cylinder A, and connected at P, by belting or other gearing, with the motive power.

The bottom of the cylinder E is either made flat or conical. The lower part of the cylinder F is divided into two or more compartments by vertical radial partitions G G G, the number of the partitions and compartments depending upon the number of the substances to be separated. These radial partitions G G may work in suitable slides or grooves in the post 0 and the bottom of the cylinder E, so that the sizes and number of the compartments may be varied but when the machine is to be used to separate only one kind and size of mechanical mixture the partitions may be permanently fixed. Each compartment is to have an opening, H, at the bottom of the cylinder, these openings to be closed by slides or doors I in them, to regulate the escape of the materials and prevent an excessive loss of the liquid. If the loss of the liquid is important, then each of these openings are to be connected with vertical or inclined wells reaching above the top of the cylinder, and the material is then to be removed from each well by elevators or scoops.

At the top of the circumference of the cylinder is to be placed a spout or hopper, K, for feeding the material to be separated by the machine. This hopper, by means of the clamps L, is adjustable, so that it can be placed at any, point around the circumference of the cylinder.

The operation of the machine is to fill the cylinder with water or other liquid; then, by suitable mechanism applied at P, cause the shaft 0 to revolve at a uniform velocity. This rotation will cause the liquid to revolve. Then feed through the hopper the material to be separated. Previous to feeding, the material should be brought to a uniform size by the usual method of screening. The material,when it strikes the rotating liquid, will fall through it in a descending spiral. The pieces having the greatest specific gravity will descend atthe least angle from the perpendicular, consequently reaching the top of the partition G nearer to the vertical from the hopperK than the pieces which have less specific gravity. The position of the hopper K is to be so arranged that the descending pieces will divide properly at one of the partitions.

After the separated materials have reached the top line of the partitions they will descend to the bottom, and may be removed from the compartments by the openings H at their bottom. The best speed at which the liquid should be rotated is such that if the material to be separated is being fed through the spout K, theliquid being rotated in the direction of the arrow and the heaviest material is to be deposited in the compartment M, the velocity of the water should be such that the heaviest material will just reach the compartment M, cylindrical vessel, the upper part provided while the lightest pieces will be carried comwith a vertically-revolving fan, the lower part pletely around and fall in the compartment N, provided with two or more compartments for the intermediate compartments catching the the reception of the divided ore, substantially 5 materials whose specific gravities are between as described.

the heaviest and lightest.

Having thus described my invention, what RICHARD SANDERS I claim as new, and desire' to secure by Let- Witnesses: ters Patent, is- EDW. P. ALLINSON,

10 An ore-separating machine consisting of a EDWARD J. ALEDO. 

